Case–control comparison over the 2 years following Achromobacter xylosoxidans initial infection

FEV1 % pred78.4±1693.2±170.003*
BMI z-score−0.1±1−0.01±0.80.7
Annual rate of respiratory exacerbations4.7±2.31.9±1.10.0001*
Annual rate of hospitalisations0.5±0.700.0001*
Annual rate of oral antibiotic courses5.3±2.42.2±1.40.0001*
Annual rate of intravenous antibiotic courses1.3±1.60.2±0.50.0001*
Pseudomonas aeruginosa colonisation51 (23)29 (13)0.04*
MRSA colonisation16 (7)2 (1)0.05*

Data are presented as mean±sd or % (n) over the 2 years following A. xylosoxidans initial infection for the cases (between T0 and T+24). FEV1: forced expiratory volume in 1 s; BMI: body mass index; MRSA: methicillin-resistant Staphylococcus aureus. #: for the comparison of sex, age, CFTR genotypes and pancreatic status matched cases and controls. *: p<0.05.